Question

I am using Ruby on Rails 3.0.10 and I would like to retrieve the scheme://domain part of a generic URL (note: a URL syntax can be also scheme://domain:port/path?query_string#fragment_id).

That is, for example, if I have the following URLs

http://stackoverflow.com/questions/7304043/how-to-retrieve-the-scheme-domainport-part-of-a-generic-url
ftp://some_link.org/some_other_string

# Consider also 'https', 'ftps' and so on... 'scheme:' values.

I would like to retrieve just the

# Note: The last '/' character was removed.

http://stackoverflow.com
ftp://some_link.org

# Consider also 'https', 'ftps' and so on... 'scheme:' values.

parts. How can I do that?

Answer 1

require 'uri'

uri = URI.parse("http://stackoverflow.com/questions/7304043/how-to-retrieve-the-scheme-domainport-part-of-a-generic-url")
url = "#{uri.scheme}://#{uri.host}" #url would be set to http://stackoverflow.com

From Module: URI.